Malicious PDF — malware analysis report

Static analysis result for SHA-256 f88a16aaac303afe…

MALICIOUS

PDF

120.2 KB Created: 2020-04-29 15:53:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1f44d0373309acf00b150c5a35cd3170 SHA-1: 7af4f852a9a2a0f5413300314e8dce66d5267875 SHA-256: f88a16aaac303afe971583551ad708913076d5ce9b1d0ef520c5cea23b6564d6
70 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to domains that appear to be part of a link farm. The heuristic 'PDF_SEO_LINK_FARM' indicates a high likelihood of malicious intent, likely to drive traffic or host malicious content. The presence of urgency lures in the document body further supports a phishing or scam attempt. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://behrensvo.com/uploads/1/3/1/4/131453005/131453005.html#idsa+dm+foot+infection+guidelines
    • http://4eyesdesignz.com/uploads/1/3/0/9/130969545/d45486dcfdd01df.pdf
    • http://ashlandunitplansethream.com/uploads/1/3/0/8/130873796/9807272.pdf
    • http://hanaresorts.com/uploads/1/3/0/5/130544257/salijokuve.pdf
    • http://photoframerpro.com/uploads/1/3/0/6/130604407/9f92bbbf6a28496.pdf
    • http://lightningtheload.com/uploads/1/3/0/5/130541846/fotexuwugad_lekurudox_xowolululipi.pdf
    • http://betreutes-eck.com/uploads/1/3/0/5/130550703/3773061.pdf
    • http://achristiangift.com/uploads/1/3/1/3/131383651/ed4e09c11.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00018fed.bin
244567954a29d7e8b73535c8ed92dd3eab3ec82ab0748b853360b7d3f92bba51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18FED 9396 bytes
font_01_sfnt_off0001b35e.bin
7b3b0ebea948f0e0e8c5824d235fe3e72c6c4cf7cebed0ccaa673ff467ad646f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B35E 2892 bytes
font_02_sfnt_off0001bda0.bin
ddc6c38a5929b263b215a5b0c7aa8b1a409f146866f06980111f9f21a6232bf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1BDA0 16036 bytes

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